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Finding the Fourth Proportional to 141,375.88, 195,099.11 and 80,947.45

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Solution

The fourth proportional to 141,375.88, 195,099.11 and 80,947.45 is: 111,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,375.88 : 195,099.11 = 80,947.45 : x
  2. Step 2: Convert to fraction form
    141,375.88/195,099.11 = 80,947.45/x
  3. Step 3: Cross multiply
    141,375.88x = 195,099.11 × 80,947.45
  4. Step 4: Simplify right side
    141,375.88x = 15,792,775,451.77
  5. Step 5: Solve for x
    x = 15,792,775,451.77/141,375.88
  6. Step 6: Final answer
    x = 111,707.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.